/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ru.miit.elearning.servlets;

import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Session;
import ru.miit.elearning.hibernate.dao.ConfigurationDAO;
import ru.miit.elearning.hibernate.dao.HibernateUtil;
import ru.miit.elearning.hibernate.dao.WebLabUtil;
import ru.miit.elearning.hibernate.dto.Plugin;

/**
 *
 * @author Cyclone
 */
public class ManagePluginServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        Session session = null;
        try {

            if (!request.isUserInRole("admin")) {
                response.sendError(HttpServletResponse.SC_FORBIDDEN);
            } else {



                String act = request.getParameter("act");
                if (act != null) {
                    session = HibernateUtil.getSessionFactory().getCurrentSession();
                    session.beginTransaction();

                    ConfigurationDAO configurationDAO = new ConfigurationDAO(session);
                    if (act.equals("edit") || act.equals("add")) {
                        String name = request.getParameter("name");
                        String enableString = request.getParameter("enable");
                        boolean enable = (enableString != null && enableString.equals("on"));
                        int property = Integer.parseInt(request.getParameter("property"));
                        int initType = Integer.parseInt(request.getParameter("initType"));
                        String initiate = request.getParameter("initiate");
                        String description = request.getParameter("description");

                        Plugin p = null;
                        if (act.equals("edit")) {
                            int id = Integer.parseInt(request.getParameter("id"));
                            p = configurationDAO.updatePlugin(id, name, enable, property, initType, initiate, description);
                            getServletContext().setAttribute("message", "Расширение \"" + p.getName() + "\" отредактировано");
                        } else {
                            p = configurationDAO.addPlugin(name, enable, property, initType, initiate, description);
                            getServletContext().setAttribute("message", "Расширение \"" + p.getName() + "\" добавлено");
                        }

                        if (session != null && session.isOpen()) {
                            session.getTransaction().commit();
                        }
                        response.sendRedirect("Plugin?id=" + p.getIdPlugin());

                    } else {
                        if (act.equals("delete")) {
                            int id = Integer.parseInt(request.getParameter("id"));
                            String name = configurationDAO.deletePlugin(id);

                            session.getTransaction().commit();
                            if (session != null && session.isOpen()) {
                                session.close();
                            }

                            if (session != null && session.isOpen()) {
                                session.getTransaction().commit();
                            }
                            getServletContext().setAttribute("message", "Расширение \"" + name + "\" удалено");
                            response.sendRedirect("Configuration");
                        }
                    }

                }



            }
        } catch (Exception e) {
            if (session != null && session.isOpen()) {
                session.getTransaction().rollback();
            }
            Logger.getLogger(ManagePluginServlet.class.getName()).log(Level.SEVERE, null, e);
            e.printStackTrace();

            String message = "<p>Ошибка редактирования расширения";
            message += WebLabUtil.prepareExceptionRef(request.getSession(), e);
            message += "</p>";
            getServletContext().setAttribute("message", message);

            response.sendRedirect("Configuration");
        } finally {
            if (session != null && session.isOpen()) {
                session.close();
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
